228115532 has 12 divisors (see below), whose sum is σ = 399311136. Its totient is φ = 114026640.

The previous prime is 228115529. The next prime is 228115543. The reversal of 228115532 is 235511822.

It is a super-3 number, since 3×228115532³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228115495 and 228115504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18782 + ... + 28442.

It is an arithmetic number, because the mean of its divisors is an integer number (33275928).

Almost surely, 2^228115532 is an apocalyptic number.

It is an amenable number.

228115532 is a deficient number, since it is larger than the sum of its proper divisors (171195604).

228115532 is a wasteful number, since it uses less digits than its factorization.

228115532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15568 (or 15566 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 228115532 is about 15103.4940328389. The cubic root of 228115532 is about 611.0146438828.

The spelling of 228115532 in words is "two hundred twenty-eight million, one hundred fifteen thousand, five hundred thirty-two".